package com.tzf.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.tzf.reggie.common.R;
import com.tzf.reggie.entity.Employee;
import com.tzf.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * @Author: 田振飞
 * @Description
 * @Date: 2022/4/30 14:31
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //1.将页面提交的密码password进行MD5加密处理
        //String password = employee.getPassword();
        //password = DigestUtils.md5DigestAsHex(password.getBytes());
        String password = DigestUtils.md5DigestAsHex(employee.getPassword().getBytes());

        //2.根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());

        //getOne==> 数据库中用户名是唯一的不可重弄的 所以直接getOne
        Employee emp = employeeService.getOne(queryWrapper);
        if (emp == null) {
            return R.error("登录失败");
        }

        //4.密码比对,如果不一直则返回登录失败结果
        if (!emp.getPassword().equals(password)) {
            return R.error("登录失败");
        }

        //5.查看员工状态,如果已经禁用,则返回已禁用的结果
        if (0 == emp.getStatus()) {
            return R.error("账号已禁用");
        }

        //6.登录成功,将员工id存入session中并返回登录成功的结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    /**
     * 退出登录
     *
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理session中保存的当前员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     *
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("新增员工,员工信息:{}", employee.toString());
        //设置初始密码123456,需要进行md5的加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        创建时间
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//
//        获取当前用户的的id
//        Long empId = (Long) request.getSession().getAttribute("employee");
//
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);
        return R.success("新增员工成功");
    }

    /**
     * 员工信息
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @PostMapping("/page")
    @RequestMapping
    public R<Page> page(int page, int pageSize, String name) {
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();

        //添加一个过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);

        //添加排序条件
        queryWrapper.orderByAsc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }


    /**
     * 根据id 修改员工信息
     *
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {
        log.info(employee.toString());
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }

    /**
     * 根据id查询员工信息
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id) {
        Employee employee = employeeService.getById(id);
        if (null != employee) {
            return R.success(employee);
        }
        return R.error("没有查询到对应的员工信息");
    }
}
